JPH03100920U

JPH03100920U -

Info

Publication number: JPH03100920U
Application number: JP944390U
Authority: JP
Priority date: 1990-02-01
Filing date: 1990-02-01
Publication date: 1991-10-22

Description

[Brief explanation of drawings]

第１図−第１０図は本考案の実施例を示す図で
、第１図−第７図は要部縦断面図、第８図−第１
０図は第５図および第７図の斜視図、第１１図は
従来例の一部断面図、第１２図は従来例でリンク
レバーに変形を生じた状態を示す断面図である。１……駆動軸、２……連結ピン、３……リンク
レバー、１１，１２，１３……スペーサ、１４…
…特殊ナツト、１１ａ，１３ａ，１４ａ……凸球
面、１２ａ，３４ａ，３５ａ……凹球面、３１…
…角孔、３３……溝、１３ｂ……半円柱状凸面、
３４ｂ，３５ｂ……半円柱状凹面、３８……間隙
、３９……突面。 Figures 1 to 10 are diagrams showing embodiments of the present invention, Figures 1 to 7 are longitudinal sectional views of main parts, and Figure 8 to Figure 1.
0 is a perspective view of FIGS. 5 and 7, FIG. 11 is a partial sectional view of the conventional example, and FIG. 12 is a sectional view of the conventional example showing a state in which the link lever has been deformed. 1... Drive shaft, 2... Connection pin, 3... Link lever, 11, 12, 13... Spacer, 14...
...special nut, 11a, 13a, 14a...convex spherical surface, 12a, 34a, 35a...concave spherical surface, 31...
... square hole, 33 ... groove, 13b ... semi-cylindrical convex surface,
34b, 35b... semi-cylindrical concave surface, 38... gap, 39... protruding surface.

Claims

[Claims for Utility Model Registration] (1) A shaft having a square hole with a cutting groove provided at one end and a part of the inner periphery opened by the cutting groove, and having an outer shape almost the same as the square hole. In the lever that is inserted to drive this shaft, a spacer with one surface formed in a convex spherical shape and a spacer with one surface formed in a concave spherical shape with the same curvature are attached to the fastening part of this cut-in groove. A link lever comprising: a pair of link levers, which are fastened together via at least the pair of spacers. (2) A cut-in groove is provided at one end, and the cut-in groove has a square hole with a part of the inner periphery open, and a shaft with an outer shape approximately the same as that of this square hole is inserted to drive this shaft. In this lever, a bolt whose lower surface is formed into a convex spherical shape and a spacer whose one surface is formed into a concave spherical shape with the same curvature are combined and fastened at the fastening portion of this cut-in groove. A link lever characterized by: (3) A cut-in groove is provided at one end, and the cut-in groove has a square hole with a part of the inner periphery open, and a shaft with an outer shape approximately the same as that of this square hole is inserted to drive this shaft. 1. A link lever characterized in that a concave surface is formed on the seat surface of the lever body for bolt attachment, and the link lever is fastened via a spacer having a protruding surface that fits into the concave surface. (4) A cut-in groove is provided at one end, and the cut-in groove has a square hole with a part of the inner periphery open, and a shaft with an outer shape approximately the same as that of this square hole is inserted to drive this shaft. 1. A link lever characterized in that a semi-cylindrical protrusion is formed on the seat surface of the lever body to which a bolt is attached, and the link lever is fastened via this protrusion.